CN-121993382-A - High-resistant Wen Shanliu-channel diaphragm chamber

Abstract

The invention relates to the technical field of diaphragm pumps, in particular to a high-temperature-resistant Wen Shanliu-channel diaphragm chamber which comprises a cooling pipe section, a diaphragm cavity and a diaphragm chamber gland arranged on the diaphragm cavity, wherein a diaphragm chamber is formed between the diaphragm chamber gland and the diaphragm cavity, two ends of the cooling pipe section are respectively a high-temperature slurry end and a low-temperature slurry end, a feed inlet which can enable cooled slurry to enter or flow out of the diaphragm chamber from the bottom of the diaphragm chamber is arranged on the diaphragm cavity, the low-temperature slurry end is communicated with the feed inlet on the diaphragm chamber, and the high-temperature slurry end is used for receiving uncooled slurry.

Inventors

• LI FANGZHONG
• WANG XIAOLEI
• JI XIAODONG
• SU AO
• ZHENG WEICAI
• MA WENSHENG
• WANG FANG

Assignees

• 重庆水泵厂有限责任公司

Dates

Publication Date

20260508

Application Date

20260316

Claims (7)

1. 1. A high-temperature-resistant Wen Shanliu-channel diaphragm chamber is characterized by comprising a cooling pipe section, a diaphragm cavity and a diaphragm chamber gland arranged on the diaphragm cavity, wherein a diaphragm chamber is formed between the diaphragm chamber gland and the diaphragm cavity, two ends of the cooling pipe section are respectively provided with a high-temperature slurry end and a low-temperature slurry end, the diaphragm cavity is provided with a feed inlet which can enable cooled slurry to enter or flow out of the diaphragm chamber from the bottom of the diaphragm chamber, the low-temperature slurry end is communicated with the feed inlet on the diaphragm chamber, and the high-temperature slurry end is used for receiving uncooled slurry.
2. 2. The high-resistant Wen Shanliu-channel diaphragm chamber of claim 1, wherein the diaphragm chamber is provided with a first vent hole communicated with the diaphragm chamber at the top of the diaphragm chamber, and a second vent hole communicated with the diaphragm chamber is arranged on the side wall of the diaphragm chamber.
3. 3. The high-resistant Wen Shanliu-channel diaphragm chamber of claim 2, wherein the inner wall of the diaphragm chamber is provided with a first conical surface and a second conical surface which are adjacent to each other, the joint of the first conical surface and the second conical surface is in arc transition, the first conical surface is arranged close to the first exhaust hole, the second exhaust hole is communicated with the first conical surface, and the inclination angle of the first conical surface is larger than that of the second conical surface.
4. 4. A high-resistant Wen Shanliu-channel diaphragm chamber as set forth in claim 3, wherein the diaphragm chamber gland comprises an outer gland and an inner gland which are detachably connected, the inner gland extends into the diaphragm chamber, and the first conical surface is provided with an annular groove at one end close to the inner gland.
5. 5. The high-resistant Wen Shanliu-channel diaphragm chamber according to claim 4, wherein one end of the internal pressure cover outwards covers the diaphragm chamber end face in a concave mode, and a feed port which is communicated with the feed port and the diaphragm chamber is arranged on the internal pressure cover.
6. 6. The high-resistant Wen Shanliu-channel diaphragm chamber of claim 1, wherein the diaphragm chamber is provided with a temperature measuring hole communicated with the feed inlet, and a temperature sensor for monitoring the temperature of slurry at the feed inlet is arranged in the temperature measuring hole.
7. 7. The high-temperature-resistant Wen Shanliu-channel diaphragm chamber of claim 1, further comprising a pumping pipeline, wherein one end of the pumping pipeline is provided with a feeding valve body, the other end of the pumping pipeline is provided with a discharging valve body, and the high-temperature slurry end of the cooling pipeline section is communicated with the pumping pipeline.

Description

High-resistant Wen Shanliu-channel diaphragm chamber Technical Field The invention relates to the technical field of diaphragm pumps, in particular to a high-resistant Wen Shanliu-channel diaphragm chamber. Background In the application scene of the diaphragm pump, when the working condition temperature is more than or equal to 200 ℃, the slurry pumped by the hydraulic end is extremely high in temperature, the pH value is in a strong corrosion range of 1.0-1.5, the diaphragm chamber of the conventional diaphragm pump adopts a double-flow-passage design, the feed inlet is connected with the suction pipe seat, the discharge outlet is connected with the discharge valve seat, the feed inlet and the discharge outlet are respectively positioned on the diaphragm chamber and are directly connected side by side, the slurry enters the diaphragm chamber along with the reciprocating motion of the diaphragm from the feed inlet, and then flows out from the discharge outlet, namely, the pumping of the diaphragm and the flowing of the slurry are completed in the diaphragm chamber, but under the excessively high working condition temperature, the slurry directly flows through the diaphragm chamber and contacts with the diaphragm, the temperature is far higher than the tolerance range of the conventional rubber diaphragm, and the corrosion of the slurry to the diaphragm cannot be avoided. In the prior art, a low-temperature section pipeline is usually arranged at the front end of a feed inlet, a high-temperature isolator is arranged in the low-temperature section pipeline, the slurry is cooled before the slurry enters a diaphragm chamber from the feed inlet, the condition that the temperature is too high to exceed the tolerance range of a diaphragm is avoided, but most of slurry is pumped while high-temperature pumping, such as asphalt, high-temperature molten salt, slag slurry and the like, is required to be kept, if the slurry is subjected to cooling treatment, the slurry cannot be kept in a slurry form under the high-temperature state, and thus the slurry is blocked. Therefore, a diaphragm pump is needed to realize direct pumping of high-temperature strong corrosion slurry without changing the form of the high-temperature slurry, and meanwhile, the effect of the high-temperature strong corrosion slurry on the diaphragm is effectively reduced, the diaphragm is prevented from being rapidly failed due to over-temperature and corrosion, and long-term stable operation of the diaphragm pump under the working conditions of high temperature and strong corrosion is ensured. Disclosure of Invention The invention aims to provide a high-temperature-resistant Wen Shanliu-channel diaphragm chamber so as to realize direct pumping of high-temperature strong-corrosion slurry on the premise of not changing the form of the high-temperature slurry, effectively reduce the effect of the high-temperature and strong-corrosion slurry on a diaphragm, avoid the rapid failure of the diaphragm due to over-temperature and corrosion, and ensure long-term stable operation of the diaphragm pump under the working conditions of high temperature and strong corrosion. In order to achieve the purpose, the high-temperature-resistant Wen Shanliu-channel diaphragm chamber comprises a cooling pipe section, a diaphragm cavity and a diaphragm chamber gland arranged on the diaphragm cavity, wherein the diaphragm chamber is formed between the diaphragm chamber gland and the diaphragm cavity, two ends of the cooling pipe section are respectively provided with a high-temperature slurry end and a low-temperature slurry end, the diaphragm cavity is provided with a feed inlet which can enable cooled slurry to enter or flow out of the diaphragm chamber from the bottom of the diaphragm chamber, the low-temperature slurry end is communicated with the feed inlet on the diaphragm chamber, and the high-temperature slurry end is used for receiving uncooled slurry. The high-temperature high-corrosion slurry pump has the beneficial effects that through the design of a single feed inlet, the direct pumping of the high-temperature high-corrosion slurry is realized on the premise of not changing the form of the high-temperature slurry, the effect of high temperature and high corrosion on a diaphragm is effectively reduced, the diaphragm is prevented from being rapidly invalid, the long-term stable operation of the diaphragm pump is ensured, the production cost is reduced, the pumping efficiency is improved, and the service life of equipment is prolonged. When the diaphragm in the diaphragm chamber contracts, the volume in the diaphragm chamber becomes larger, the pressure becomes smaller, the generated negative pressure is transmitted through the feed inlet, the cooling pipe section and the pumping pipeline, the feed valve body is driven to be opened, the discharge valve body is driven to be closed, high-temperature slurry enters the pumping pipeline from the feed valve body, at the